It was 1st launched in 1939 for automobiles. It includes the fluid coupling and three planetary gears. They collectively make three ahead and one reverse speed. There is not any clutch for engagement and disengagement in the engine. Torque converter does exactly the same purpose the clutch does within https://holdenzzyvs.theblogfairy.com/32974351/indicators-on-gearbox-you-should-know